Businesses have gone through different phases or stages of marketing over years. Which of

Businesses have gone through different phases or stages of marketing over years. Which of

Businesses have gone through different phases or stages of marketing over years. Which of the following is true about the production era?

I. Say’s law-supply creates its own demand-was truly applicable in this era.

II. The market was a seller’s market.

III. Product features were given importance in this era.

IV. Companies focused on manufacturing processes.

[A]Only (I) above 

[B]Only (IV) above

[C]Both (II) and (III) above 

[D](I), (II) and (IV) above